为探究臭氧和Fenton试剂氧化预处理对疏浚底泥干燥特性的影响，分别在疏浚底泥中通入臭氧和添加Fenton试剂进行预处理，并进行红外干燥试验。结果表明，臭氧预处理对疏浚底泥红外干燥过程中水分蒸发有促进作用；随着温度的升高，臭氧预处理对水分蒸发的促进作用逐渐增强，最大干燥速率明显增大，提高了约9%~36%，且恒速干燥阶段时间较长，是未预处理的1.2~1.7倍，干燥速率的快速上升和下降却随着温度的升高而加快。Fenton氧化预处理对促进干燥过程中水分蒸发的作用效果并不明显，却可以明显增大干燥速率，且干基含水率越高，最大干燥速率越大。比较底泥预处理前后微观形貌，发现不同氧化预处理后底泥颗粒分布均匀，有利于水分蒸发。

This work investigated the influence of oxidation pretreatment on drying characteristics of dredged sediment, and the oxidants included ozone and Fenton’s reagent. The drying experiment was carried out using an infrared constant temperature drying oven. The results showed that pretreatment with ozone could obviously promote the infrared drying behavior of dredged sediment and its facilitation on water evaporation was gradually strengthened with the rise of temperature, and the maximum drying rate was improved significantly by over 9%~36%. Moreover, the constant drying phase was held for a relatively long time, which was 1.2~1.7 times that of without pretreatment. The rising and falling variation of the drying rate was obvious with the rise of temperature. Fenton’s reagent was applied to treat the sediment resulting in the increase of the drying rate, but it was not obviously useful to water evaporation. The maximum drying rate increased with the increase of dry basis moisture content. Electron microscope scanning results indicated that the sediment particles were distributed evenly after oxidation pretreatment, which was beneficial to evaporation.